Ubuntu 15.04 problems

[John Hupp]

On 5/21/2015 10:35 AM, jimkvg at 3web.com wrote:
>  I have some issues in my Ubuntu 15.04.  It seems to be worse than the 
> previous version.  Start-up takes much longer time now than before ... 
> looks like three to five minutes.  When I put it in 'Suspend' mode, my 
> PC woke up by itself even thou I didn't touch either mouse or 
> keyboard.  This is not like in the previous version.   I installed 
> DropBox straight from Ubuntu Software Centre.  When I clicked on the 
> tiny 'DropBox' icon on the top far right side, all icons on the screen 
> disappeared.  The Dropbox box opened up okay.  I opened up one of 
> pictures and it was okay.  But when I clicked on 'close', 'reduce' or 
> 'full screen' icon at the upper corner left side, my PC froze up.  
> When I held down 'Ctrl' and 'alt' keys and hit 'delete' key, the PC 
> resumed working ok, but icons were still absent from the screen. So I 
> had to shut it down to re-start it again.  Is these problems because 
> of the incompatibility of my PC to Ubuntu?  English is my 2nd language 
> and I am not good at understanding English and I am still confused at 
> how to reply to comments that come up in forums.  It seems that I am 
> being ignored in my previous comments that I put in the forums or did 
> I misplaced them?

How much memory does that machine have?